Flying machine



H. BAUMElSTFR.

FLYING MACHINE. FILED MM. 2. 19-2?.

W 'INVLNTOR;

Patented ec.' 26, 1922.

mms BAUMEISTER, or FRIEDRICHSHAFEN, GERMANY, AssIcNon TO zEPrELmwanna sr, GESELLSCHAFT MIT BESCHBANKTER HAFTUNG, OF

STAAKEN-SPANDAU, GERMANY.

FLYING MACHINE.

Application filed March 2, 1921. Serial No. 449,271.

To all whom 'it may concern:

. Be it known that I, HaNs BAU EISTER, a citizen of Germany, residing at Friedrichshafen, Germany, have invented certain new and useful improvements in Flying Machines (for which I have filed an applica tion in Germany June 12, 1919), of which the following is a specification.

My invention relates to flying machines and aims at simplifying the construction of the same. More in particular, my invention tends to obviate for the future the use of special structures such as have been hitherto'required as connecting members even in cases where the supporting plane was sepa rated from the car housing the engines, or from the engine bed, by but a short distance.

It has already been proposed for this purpose to entirely .enclose the motor plant in the supporting planes of the flying machine. However, in so doing, the construction of the supporting plane is considerably impaired while, on the other hand, the arrangement of the motor installation, and, above all, the carrying out of any repair work, such. as may be required ,to be done from time to time, or the exchanging of parts, etc., at the motors, is seriously hindered. 4

Now, my improved construction renders it only to the .least possible degree necessary to effect any change in the structure of the framework sections of the supporting plane, while atthe same time, by its very means, every desired possibility is alforded of fitting in the motor, not only in the plane of the supporting Surface, but likewise also on the outside, or in front of or to the rear of the supporting surface, and this by the provision of special girders adapted to carry or accommodate the Inotors, said girders being essentially disposed in the longitudinal direction of the flying machine, and connected from without to the supporting plane. In a construction of this kind the setting up and removing of the' motor may be effected all 'the more easily as the bed or foundation of the motor will lilzewise not be contained within the interiorof the supporting plane, At the same time it is immaterial whether the girders serving as a foundation for the motor, are connected 'to the 'frame of the supporting plane either above the upper surface or below 'the underside of said supporting plane, and whether the engine casing enclosing the motors extend downward or upward from the girders. Notwithstanding, the entire construction will be essentially simplified by the girders being arranged at the undeiside of the supporting surface, and their ends projecting beyond either the front, the rear, or even beyond both edges' of the supporting surface, and by only the projecting ends of the girders being used as a foundation for the motors, or the engine casing. Although, in View of the greater accessibility obtained thereby, it will be most expedien't to arrange the motors at either the forward or rearward edge of the supporting surface, the engine casings may, owing to the provision of the girders, be to a greater or less extent built into the supporting surface area, even' as the conditions prevailing for the time being may render advisable, by merely providing suitable openings at the proper' points within the supporting suraces.

Two forms of a. flying machine embodying my invention are shown by way of example in the accompanying drawings, in which,

Fig. 1 is a side elevation partly in section on line 1-1 in Fig. 3, of the supporting surface of afiying machine having a triple motor installation,

Fig. 2 the front view appertaining thereto,

V Fig. 3 a corresponding plan View..

Fig. 4: a part-sectional view on line 4-4 in Fig, and

Fig. 5 a plan view of the supporting surface of a flying machine 'having two motor installations.

in ,the construction according to Figs. 1 to 3,- there are connected to 'the underside of a supporting surface A a centrally disposed pair of girders B and two pairs 'of outside girders B All these six girders are lattice girders. The several pairs of, girders are staggered relatively to each other :from the front toward the rear, in such wise that the outside pairs B will project for a considerable distance beyond the front edge of the supporting surface, while the inside pair B tcrminates in a line with the rear edge of 'the supporting surface. The outer ends of each pair serve as *a base or foundation for the three motor installations C and C respectively; the center motor operating a. pressure propeller, and each of the two outer motors a pulling propeller. As shown in the drawing, the outer motor installations C are' arranged for the main part in front i of the supporting plane, while the central motor installation C 'projects for its full length into the rear portion thereof.

In the form of construction disclosed by F igs. 4: and 5, there are connected to the underside of a supporting surface D two plate girders E, which while almost terminating in- -a line with the rear edge of the supporting plane, project for about onehalf of their length beyond the front edge' thereof. The free ends of each pair of girders* constitute each the bed or foundation for a forward and a rearward motor intogether with the bed or foundation carry'-` ing them, are provided in a well known manner with a casing' adapted to minimize the `air resistance.

In 'the form of execution shown, it is assumed that the girders carrying the motors are merely fixed to. the underside of the supporting pla-ne, because a construction of this' type ;will be most' frequently employed in practice. However, even in such a case it ma at times prove expedient above the supporting plane.

I claim: 1. In a flying machine in combination, a

supporting surface, a girder externally attached to said surface and extending substantially longitudinally of said flying machine, and a motor carried by said girder.

2. In a flying machine in combination, a supporting surface, a pair of girders externally attached to said surface and extending substantially longitudinally of said flying machine, and a motor carried by said girders.

3. In a fiaying machine in combination, a supporting surface, girders attached to the bottom ;face of said supporting surface and projecting at least beyond one edge thereof, and a motor carried by said girders.

4. In a flying machine in combination, a

supporting surface, a plurality of girders attached to the bottom face of said supporting surface and projecting beyond opposite edges thereof, and a motor on the projecting ends of said girders.

ln testimony whereof l af'fix my signature.

HABIS BA'UIVEISTER, 

